/* 基础重置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    /* 全局样式 */
    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #1e3c72, #2a5298);
        color: #ffffff;
        line-height: 1.6;
        overflow-x: hidden;
    }

    h1, h2, h3, h4, h5, h6 {
        font-family: 'Montserrat', sans-serif;
        color: #00ff99;
        margin-bottom: 20px;
    }

    p {
        margin-bottom: 15px;
        font-size: 16px;
    }

    a {
        color: #00ff99;
        text-decoration: none;
    }

    a:hover {
        text-decoration: underline;
    }

    /* 容器 */
    .container {
        width: 90%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 40px 0;
    }

    /* 头部 */
    header {
        text-align: center;
        padding: 50px 0;
        background: rgba(0, 0, 0, 0.5);
        border-radius: 10px;
        margin-bottom: 40px;
    }

    header h1 {
        font-size: 48px;
        animation: fadeInDown 2s ease;
    }

    header p {
        font-size: 18px;
        margin-top: 10px;
        animation: fadeInUp 2s ease;
    }

    /* 主体内容 */
    main {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    article, .sample-data {
        background: rgba(255, 255, 255, 0.1);
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    }

    article h2, .sample-data h2 {
        color: #ffcc00;
    }

    pre {
        background: rgba(0, 0, 0, 0.7);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 15px;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        color: #00ff99;
    }

    table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
    }

    table th, table td {
        border: 1px solid #ffffff;
        padding: 10px;
        text-align: left;
    }

    table th {
        background: #2a5298;
    }

    ul {
        margin-bottom: 20px;
    }

    ul li {
        list-style: disc inside;
        margin-bottom: 10px;
    }

    /* 图片 */
    .images {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 20px;
    }

    .images img {
        width: 100%;
        max-width: 150px;
        border-radius: 5px;
    }

    /* 提示 */
    .notice {
        text-align: center;
        padding: 20px;
        background: rgba(255, 255, 255, 0.2);
        border-radius: 10px;
        margin-bottom: 40px;
        font-size: 18px;
    }

    /* 动画 */
    @keyframes fadeInDown {
        from { opacity: 0; transform: translateY(-20px); }
        to { opacity: 1; transform: translateY(0); }
    }

    @keyframes fadeInUp {
        from { opacity: 0; transform: translateY(20px); }
        to { opacity: 1; transform: translateY(0); }
    }

    @keyframes dataFlow {
        0% { background-position: 0 0; }
        100% { background-position: 100% 100%; }
    }

    /* 按钮 */
    .button {
        background-color: #00ff99;
        border: none;
        padding: 10px 20px;
        font-size: 16px;
        cursor: pointer;
        border-radius: 5px;
        transition: box-shadow 0.3s ease;
    }

    .button:hover {
        box-shadow: 0 0 10px #00ff99;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        header h1 {
            font-size: 42px;
        }
    }

    @media (max-width: 1200px) {
        main {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 1024px) {
        .container {
            padding: 30px 0;
        }
    }

    @media (max-width: 768px) {
        header h1 {
            font-size: 36px;
        }

        .images img {
            max-width: 100px;
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 28px;
        }

        .button {
            width: 100%;
            padding: 15px;
        }
    }

    @media (max-width: 320px) {
        p, li, table th, table td {
            font-size: 14px;
        }
    }

    /* 3D效果 */
    .card {
        position: relative;
        perspective: 1000px;
    }

    .card-inner {
        position: relative;
        width: 100%;
        height: 100%;
        transition: transform 0.6s;
        transform-style: preserve-3d;
    }

    .card:hover .card-inner {
        transform: rotateY(180deg);
    }

    .card-front, .card-back {
        position: absolute;
        width: 100%;
        height: 100%;
        backface-visibility: hidden;
        border-radius: 10px;
        overflow: hidden;
    }

    .card-front {
        background: url('https://images.gptkong.com/demo/sample1.png') center/cover no-repeat;
    }

    .card-back {
        background: url('https://images.gptkong.com/demo/sample2.png') center/cover no-repeat;
        transform: rotateY(180deg);
    }

    /* 数据节点动画 */
    .data-node {
        width: 10px;
        height: 10px;
        background: #00ff99;
        border-radius: 50%;
        animation: dataFlow 5s linear infinite;
    }